Sofa-bed.



mmmm

QZ 36 37 41 f5 34 27 29 33 35 W. P. SENG & D. F. DYKE.

SOFA BED.

APPLICATION FILED JULY 3. I912.

Patented Apr. 20, 191i 3 SHEETS-SHEET 1.

WH. SEN

G 8: D. F. DYKE.

SOFA BED.

APPLICATION FILED JULY 3.19121 Patented Apr 20, 1915.

8 SHEETS-SHEET 2.

W. P. SENG 84 D. F. DYKE.

SOFA BED.-

APPLICATION FILED JULY 3, I912.

Patented M1220, 1915.

8 SHEETS-SHEET 3.

.. khan Q mn QM & .Q an aw narnirr WENDELDI P. SENG AND BARREL FRANKDYKE, OF CHICAGO, ILLINUIS, ASSIG-NURS T0 DAVOPLANE BED COMPANY, OFCHICAGO, ILLINOIS, A GOREORATION 0F ILLINOIS.

SOFA-BED.

Specification of Letters Patent.

Patented Apr. 2%, i915.

Application filed July 3, 1912. Serial No. 707,443.

' United States of America, and residents of Chicago, county of Cook,and State of Illinois, have invented certain new and useful Improvementsin Sofa-Beds, of which the following is a specification.

The main objects of this invention are to provide an improved form ofsofa-bed comprising a plurality of bed sections hinged together andsupported on a base and adapted to be folded one upon the other ontosaid base, whereby the sofa-bed is adapted for use as a sofa, andadapted to be extended in substantially horizontal alinement for use asa bed; to provide a sofa-bed wherein the bed sections are adapted to befolded into compact form so as to occupy the minimum amount of spacewhen converted into a sofa, and to be extended to form a bed afiordingthe usual amount of bed surface; to provide an improved method ofsecuring the sections to the supporting base whereby they may be quicklyplaced upon and removed from said supporting base; to provide animproved arrangement of the bed sections whereby they may be folded withthe mattress and bedding in normal position there on; to provideimproved means for successively locking the sections together as theyare folded upon each other; to provide a sofa-bed in which the severalbed sections are attached to the under side of a seat frame invertiblymounted on said supporting base; to provide improved means for securingthe bed sections in their folded positions on said seat frame; toprovide improved means fori securing said seat frame in its invertedposition; and to provide an improved sofabed of this kind, which, whenthe sections are extended for use as a bed, has the length of the beddisposed nsversely to that of the sofa. fin illustrative embodiment ofthis inventionis shown in the accompanying drawin which:

ire 1 a plan view of a sofahed contrusted according to this inventi withi be tory to extending the sections for use as a bed, the mattress andbedding being indicated in dotted outline. Fig. 4 is a side elevationtaken on the line A-A of Fig. 1

showing the parts in their extended position for use as a bed. Fig. 5 isa fragmentary side elevation of the sections illustrat mg difierentsteps in the folding. or unfolding thereof. Fig. 6 is a similar viewshowing still another step in the folding of the sections. Fig. 7 is afragmentary sectional detail illustrating the mechanism by which theseat frame is locked tothe base when in its inverted position. Fig. 8 isan enlarged fragmentary detail illustrating the manner in which theopposite movement of the locking rods is accomplished.

In the construction shown in the draw ings the sofa-bed comprises theusual supporting base having ends 1 and 2 and back 3, which as a wholeconstitutes the supporting base and housing for the seat frame and bedsections. The seat frame 4: is tiltably or rotatably mounted between theends 1 and 2, and has one side thereof upholstered to form a sofa seat5. At the other side of the seat frame 4 the-several bed sections areconnected, onto which they are adapted to be folded.

The connection of the seat frame a to the supporting base comprisespairs of plates 6 and 7 respectively secured to the ends 1 and 2 of thebase and to the seat frame 1-. These plates are respectively providedWith slots 8 and 9 with which coact pins 10 and 11 respectively securedon the plates 6 and 7. The relative shape and disposition of the slots 8and 9, and the location of the pins 10 and 11, are such that the seatframe at may be inverted by reason of the shifting pivotal action takingplace between the seat frame a and the base through the coaction of thepins and slots. The pirates (i and '5" are rescectively provided withshoulders 12 and 3 .3 "which are arranged so as have iociring enmgenientwhen. the seat is ifted to its normal or sofa position. The bedcomprises co a wide se tions and sections, 2 ad pted of the of. Brackets14 are secured to the ends of the seat frame 4 adjacent to what would bethe rear edge of the seat frame when in the sofa position. Notches 15are formed in the ends thereof, in which are received the pins 16secured to the ends of the narrow bed section 17 intermediate the edgesthereof. The connection of the bed section 17 to the bracket 14 is suchthat it may swing from a substantially vertical position to asubstantially horizontal position. The inner wide bed section 18 and.the middle wide bed section 19 are hinged to the section 17 at oppositesides thereof. .The section 18 is designed to be shifted from a loweredposition on said seat frame to an elevated position and vice versarespectively with the shifting of the narrow section 17 into and out ofits horizotanlly disposed position.

The elevating or lowering of the section 18 is accomplished by means ofplates 20 located forwardly of the brackets 14 at the ends of the seatframe 4. Each bracket is provided with an inclined cam surface 21 onwhich the pins, secured to the section 18 ride. Each of the cam surfaces21 terminates at its upper end in a horizontally disposed surface 23 onwhich the pins 22 rest when the section 18 is shifted to its elevatedposition, and at its lower end terminates in a hook 24 which coacts withits respective pin 22 for securing the section 18 in its loweredposition. The section 17 is further braced and secured to the supportingbrackets 14 by means of a brace 25 connected at its ends to the ends ofthe section 17 and,

adapted to be extended in horizontal alinement with the other sections,or to be folded therewith onto the seat frame with the wide section 28in between the sections 18 and 19, as indicated in Figs. 2 and 3.

T he sections 18 and 19 are of substantially the same width, and thesection 28 is somewhat narrower than the sections 18 and 19 so that itmay be folded in between them, the difi erence in width beingsubstantially equal to the thickness of the mattress and the usualbedding. The sections 17 an 27 are also of different widths, thedifference being a little more than the thickness of the mattress andbedding the width of the wider section being a little more than threefolds of the mattress and bedding, and that of the section 27 beingsubstantially equal to two folds of the mattress and bedding.

The sections are supported in their horizontally extended positions bymeans of pairs of legs 29 and 30 respectively pivoted at 31 and 32 onthe ends of sections 19 and 28 adjacent to the forward edges thereof.The legs of each pair are extended upwardly beyond their pivots and havethe pairs of links 33 and 34 respectively connected thereto, and to thesections 17 and 27,

' whereby the legs are caused to automatically shift to positionstransversely of the sections when unfolded and. substantially paralleltherewith when the sections are folded. The narrow section 27 is bracedby a rod 35 connected at its ends to the pivotal connec tion of thelinks 34.

The sections 19 and 28 are locked together when folded upon each otherand these sections are locked to the seat frame when folded upon thesection 18. The mechanism for locking the sections 19 and 28 togethercomprises dogs or pawls 36 pivotally connected on the ends of thesection 28 inwardly of the pivotal connection of the legs 30 thereto.The pawls are provided with notches or recesses 37 which are adapted toengage shoulders or projections 38 located on the ends of the section19. Pins 39 on the links 34 engage recesses 40 in the pawls 36, whichduring the shifting of the legs 30, shift the pawls into and out ofposition for causing the engagement of the recesses 37 and shoulders orprojections 38. The pawls 36 are provided with inclined shoulders 41which coact with the shoulders or projections 38 for directing the pawlto insure the engagement of the recesses 37 therewith. The pawls 36 arelocked, when in engaging position with the section 19, by means of pinsor shoulders 42 carried on the inner side of the legs 29 and sopositioned that when the legs are shifted to their folded positions,through the folding of the sections, the pins 42 will engage the edge ofthe pawls opposite the recesses 37. It is then impossible for the pawlsto release the sec tions until they are shifted so as to unfold the legs29 and retract the pins 42. The locking of the bed sections to the seatframe when in their folded positions is accomplished by means of a rod43 rotatably mounted in clips 44 on the inner face of the front rail 45of the seat frame, which rod is provided at its upper end with atransversely disposed shoulder 46 that is adapted to be shifted to theposition shown in Fig. for engaging and locking the folded sections tothe seat frame. The rod 4-8 is connected by a transverse bar 47 to therods 48 and 49 slidably mounted on the front rail or panel 45 of theseat frame. The rods 48 and 49 are so arranged as to have their outerends shifted into recesses 50 located. in an adjacent part of the-ends 1and 2, for the purpose of locking the seat frame 4 in its invertedposition, when therod 43 is shifted to disengage the shoulder 46 fromthe folded bed sections.

income The front rail or panel 45 is made of sufficient width to hidethe bed sections when the seat frame is in its normal sofa position.

The operation of the device isas follows: If it is desired to extend thesofa bed'for use as a bed, the seat frame 4: is first shifted to aninverted position. This is accomplished by elevating the front thereof,whereupon the pins 10 and 11 shift in the slots 8 and 9 and cause theseat frame 4 to assume the position in which it is shownin Figs. 3 and4. The rod 43 is then turned so as to disengage the shoulder 46 from thebed sections, which shifts the rods 48 and 49 and causes the endsthereof to engage the recesses 50, thereby locking. the seat frame inits inverted position. The operator then grasps the rod or brace 35 andpulls the sections upwardly and outwardly to the position shown in fulloutlines in Fig. 5. This movement of the section swings the section 17on its pivot to a horizontally disposed position which causes thesection 18 to shift rearwardly and forces the pins 22 along the inclinedsurfaces 21 of the plates 20 and onto the transversely disposed surfaces23., so that the section is elevated to and supported in itshorizontally disposed position. This same movement of the sections alsocauses the links 33 to unfold the legs 29, and the unfolding of the legswithdraws the pins as from the pawls 36. Tn order to unfold the sections27 and 28 from the position shown in Fig. 5, it is first necessary forthe operator to grasp the ends of both legs 30 and elevate themslightly. This movement of the legs causes the pins 39 to retract thepawls 36 and thereby disengage the recesses 37 from the pins 88,whereupon the sections 27 and 28 may be shifted to their horizontallyextended positions, as shown in Fig. 4c. The unfolding of the sections27 and 28 also causes the legs 30 to he unfolded to a transverseposition for supporting the section 28. The sofa-bed is then ready foruse as a bed.

When it is desired to fold the bed sectionsto reconvert into a sofa, theouter section 28 is folded upon the section l9. This folding thesections causes the pins 89, working in the slots all, to shift thepawls 36 into position to engage the shoulders or projections 38. Thesesections are then folded upon the innermost section 18. During themovement of the sections from the position shown in Fig. 5 to that shownin Fig. 6, the legs 29 are caused to shift to their folded positions,whereupon the pins ii-Q engage the edges of the pawls36 for securing thepawls against becoming accidentally disengaged from the shoulders orprojections 38. During the movement of the sections from the positionshown in Fig. 6 to that shown in Fig. 3, the section 17 swings on itspivot from a horizontal to vertical position,

thereby pulling the section 18 forwardly and causing the pins 22 todescend their respective inclines 21 and engage the hooks 24. When thesections are thus folded they are locked to the seat frame by turningthe rod 3 to shift-the shoulder 46 over the adjacent edge of the foldedsections. This movement of the rod 43 shifts the rods 48 and49 so as todisengage them from the recesses 50, whereupon the seat frame may beshifted to its normal position for use as a sofa.

Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that numerous details of theconstruction shown may be altered or omitted without departing from thespirit of this invention as defined by the following claims.

We claim 1. In a sofa bed, the combination of a pair of wide bedsections and an intermediate narrow section foldably hinged together,engaging means on said wide sections adapted to have interlockingengagement when said sections are shifted to their folded positions, andother means adapted to be so shifted through the folding of said.sections as to lock aforesaid engaging means when inter locked.

2. Tn a sofa bed, the combinationof a pair of wide bed sections and anintermediate narrow section foldably hinged together; a shoulder on oneof said wide sections; a pawl piv'otally carried on the other of saidwide sections and having a notch therein adapted to engage said shoulderwhen said sections are shifted to their folded positions, and meansadapted to be automatically shifted, through the folding of saidsections, into position to lock aforesaid pawl in engagement with saidshoulder.

3. Th a sofa bed, the combination of a supporting frame; a pair of widebed sections and an intermediate narrow section foldably hingedtogether; a shoulder on one of said wide sections; a pawl carried on theother said wide section and having a notch therein adapted to engagesaid shoulder when said wide sections are folded; a leg pivotallyconnected to said one wide section; a link so connected to said leg asto control the shiftingthereof to cause it to occupy a positiontransversely to said sections when exmnded and substantially parallelthereto when said sections are folded; and a shoulder carried on saidleg and adapted to engage said pawl when said sections are shifted totheir folded positions and to lock" said pawl in engagement with saidshoulder.

4t. lln a sofa bed, the combination of a sup porting frame; a pair ofwide bed sections and an intermediate narrow section foldably hingedtogether; a shoulder on one of .said wide sections; a pawl carried onthe llltl file Mid

other said wide section and having a notch therein adapted to engagesaid shoulder when said wide sections are folded; a leg pivotallyconnected to said other section; a link connected to said leg and tosaid narrow section and adapted to shift said leg to a positiontransversely of said sections when-extended and into a substantiallyparallel position therewith when folded; and a shoulder carried by saidlink and adapted to engage said pawl and so control the movement thereofas to cause said pawl to engage said shoulder when said sections arefolded to their parallel positions.

5. In a sofa bed, the combination of a supporting frame; a pair of widebed sections and an intermediate narrow section foidably hingedtogether; a shoulder on one of said wide sections; a pawl carried on theother said wide section and having a notch therein adapted to engagesaid shoulder when said wide sections are folded; a leg pivotallyconnected to said other wide section; a link connected to said leg andto said narrow section and adapted to shift said leg to a positiontransversely of said sections when extended and into a substantiallyparallel position therewith when folded; a shoulder carried by said linkand adapted to engage said pawl and so control the movement thereof asto cause said pawl to engage the first mentioned shoulder when saidsections are folded to their parallel positions; a second leg pivotallyconnected to said first mentioned wide section; a link so connected tosaid second leg as to shift the same to cause it to occupy a positiontransversely of said one section when unfolded and to occupy a positionsubstantially parallel therewith when said sections are folded; and ashoulder carried by said second leg and adapted to engage'saidpawl whensaid sections are folded, and to lock aforesaid pawl in its engagedposition with sald first men-v tioned shoulder.

6. In combination, a plurality of foldable sections, a catch-memberpivoted to one section and second section having a part with which saidcatch-member engages when the sections are in folded relation, and meanspivoted to one of said sections in spaced relation to the pivot of thecatch-member and operable when moved relative thereto to impart areleasing movement to said catchmember.-

7. In combination, a plurality of fold-able.

bed frame sections, a leg pivoted. to one of said sections, and asection locking device pivoted to the aforesaid section andautomatically operable to lock two sections together upon a folding ofone over the other arid operable by an unfolding movement of the leg torelease the locking connection between said sections.

8. In combination, a set of hingedly connected frame parts, one beingfoldable over the other, a latch member and a leg each pivoted to one ofsaid sections and the latch member being adapted to lock the sections infolded relation and being operable by an unfolding movement of the legto release the locking connection between said sections. 9. Incombination, a plurality of foldable bed frame sections, a leg pivotedto one of said sections, andva section locking device carried by thesection with said leg and controlled by a movement of the leg and alsoacting on the leg to yieldingly retain it in folded position relative toits carrying section.

10. In combination, a plurality of foldable bed frame sections, a legpivoted to one of said sections, a catch member yieldinglv carried byone section for yielding movements relative thereto and adapted toengage a part of another section to retain the sections in foldedrelation, said catch memthe leg in folded position relative to itscarrying section.

Signed at Chicago this 27th day of June. 1912.

XIENDELIN I. SENG. D. FRANIZ DYKIG.

Witnesses EDWIN Pmznrs, FR, H. iifo'rausz'.

